Extrusion



FIG. 1 is a perspective view of an extrusion in accordance with my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof; and,

FIG. 6 is an enlarged front elevation view thereof, the rear elevation view being a mirror image thereof.

The extrusion is shown with a symbolic break in its length. The appearance of any portion of the extrusion between the jagged break lines forms no part of the claimed design. 

CLAIM The ornamental design for an extrusion, as shown and described. 